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The Laboratory for Advanced Semiconductor Epitaxy is located in the Microelectronics Research Center at the University of Texas at Austin. We are developing advanced materials and devices for electronics and optoelectronics. We are particularly interested in GaSb-based mid-infrared quantum well lasers, THz sources based on epitaxial metal/semiconductor nanocomposites, new plasmonic materials, low-noise III-V avalanche photodiodes, silicon-based electronics/optoelectronics, and sources/detectors for quantum information processing. Our secret weapon in this effort is the molecular beam epitaxy (MBE) crystal growth technique.

Recent Publications

J. A. McArthur, A. A. Dadey, K. Circir, H. Karimi, D. Wei, E. Y. Wang, J. C. Campbell, and S. R. Bank, "Thin absorber AlInAsSb 2-um SACM APDs with very low and tunable dark currents at room-temperature," Applied Physics Letters, vol. 126, no. 26, pp. 261102, Jul 2025. Digital object identifier
A. F. Ricks, C. White, H. Hijazi, L. C. Feldman, and S. R. Bank, "Improved Bi Incorporation in InSbBi and AlInSbBi for Novel nBn Photodetectors," 67th Electronic Materials Conf. (EMC), Durham, North Carolina, Jun 2025.
E. Y. Wang, J. A. McArthur, H. Karimi, J. C. Campbell, and S. R. Bank, "Effect of Uncracked Group V Species on Unintentional Doping Concentration in AlInAsSb," 67th Electronic Materials Conf. (EMC), Durham, North Carolina, Jun 2025.
H. Karimi, D. J. Herrera, A. A. Dadey, D. Wei, J. A. McArthur, S. R. Bank, and J. C. Campbell, "Analysis of the effect of different scattering mechanisms on the excess noise behavior of Sb-based avalanche photodiodes," Optics Express, vol. 33, no. 4, pp. 7337-7344, Feb 2025. Digital object identifier
T. Kim, A. M. Skipper, S. R. Bank, and E. T. Yu, "Nanoscale electrical conductance and leakage currents in etched and selective-area regrown GaAs pn junctions," Journal of Applied Physics, vol. 137, no. 7, pp. 075702, Feb 2025. Digital object identifier
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Recent News

Congrats to Ashlee for defending her thesis!

Oct. 31, 2024
Congrats to Ashlee for defending her thesis!

Congrats to JAM for defending his thesis! Best of luck at NREL!

Oct. 24, 2024
Congrats to JAM for defending his thesis! Best of luck at NREL!

Congrats to Qian for defending her thesis!

Oct. 11, 2024
Congrats to Qian for defending her thesis!
Seth Bank

Seth R. Bank
Cockrell Family Chair in Engineering
Chandra Electrical & Computer Engineering

Email: sbank_at_ece.utexas.edu

CV: SRB_CV.pdf

Scholar: Profile

Offices:
2.206P MER (main office)
3.876 EER (teaching office)

Mailing address:
10100 Burnet Road, Bldg. #160
MER 2.606C, R9900
Austin, TX 78758